How to adjust the warp position of the warp stop standion of the warp stop stand
Adjusting the warp position of the stop frame can be approached from the following aspects:
1. Adjustment of front and rear positions
Based on the characteristics of the warp yarn: If the warp sizing quality is good and the single yarn strength is strong, the warp stop frame can be moved as far back as possible. This can increase the opening length of the warp yarn, reduce the amplitude o
Adjusting the warp position of the stop frame can be approached from the following aspects:
1. Adjustment of front and rear positions
Based on the characteristics of the warp yarn: If the warp sizing quality is good and the single yarn strength is strong, the warp stop frame can be moved as far back as possible. This can increase the opening length of the warp yarn, reduce the amplitude of repeated stress on the warp yarn, and thus reduce the breakage rate of the warp yarn. If the quality of warp sizing is poor and there are many fuzz, the stop frame should be moved forward as much as possible. On the one hand, it can reduce the length of mutual friction between warp yarns, and on the other hand, it can improve the sensitivity of stopping warp breaks and reduce spider web defects. At this time, the warp tension should also be appropriately reduced.
2. Adjustment of high and low positions
Reference warp condition: The warp position is high, the warp stopping piece has small jumping, and the impact force on the warp is small. However, the sensitivity of the warp stopping is low, which is prone to defects such as spider webs and missed warp. Moreover, if the warp stopping frame is too high, it will lose its function as a rear beam. Generally, the warp stopping frame cannot be higher than the warp position line. The position of the warp stop frame is low, which can increase the sensitivity of the warp stop and reduce the chance of spider webs. It is especially effective for warp yarns with poor sizing quality and excessive fuzz. However, if the warp stop frame is too low, the jumping of the warp stop piece will increase the additional impact load on the warp yarns. If the warp strength allows, the stopping frame should be minimized as much as possible.
Coordinate with the height of the rear beam: The height of the warp stop frame should be adjusted accordingly to the height of the rear beam, requiring a gap of 1-2mm between the warp stop frame and the warp yarn.
When adjusting the position of the warp yarn on the warp stop frame, it is also necessary to pay attention to measurement and inspection to ensure that the position and angle of the warp stop frame meet the requirements, and to check whether the warp stop piece is installed correctly and whether it can effectively detect the breakage of the warp yarn. At the same time, different weaving machine models and stop frame types may have differences in adjustment methods and details, and specific operations should be carried out according to the actual situation.
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